199753995

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{2381}}^1$

素因数の和:2460

約数の個数: 64

約数和(自身を含む): 395145216

約数和(自身を除く): 195391221

約数列:

[1, 3, 5, 7, 15, 17, 21, 35, 47, 51, 85, 105, 119, 141, 235, 255, 329, 357, 595, 705, 799, 987, 1645, 1785, 2381, 2397, 3995, 4935, 5593, 7143, 11905, 11985, 16667, 16779, 27965, 35715, 40477, 50001, 83335, 83895, 111907, 121431, 202385, 250005, 283339, 335721, 559535, 607155, 783349, 850017, 1416695, 1678605, 1902419, 2350047, 3916745, 4250085, 5707257, 9512095, 11750235, 13316933, 28536285, 39950799, 66584665, 199753995]

約数ペア:

[(1, 199753995), (3, 66584665), (5, 39950799), (7, 28536285), (15, 13316933), (17, 11750235), (21, 9512095), (35, 5707257), (47, 4250085), (51, 3916745), (85, 2350047), (105, 1902419), (119, 1678605), (141, 1416695), (235, 850017), (255, 783349), (329, 607155), (357, 559535), (595, 335721), (705, 283339), (799, 250005), (987, 202385), (1645, 121431), (1785, 111907), (2381, 83895), (2397, 83335), (3995, 50001), (4935, 40477), (5593, 35715), (7143, 27965), (11905, 16779), (11985, 16667)]